Istanbul -LRB- CNN -RRB- -- The death toll from an earthquake that struck eastern Turkey a week ago was at 601 as of Sunday , the Turkish state-run Anatolia news agency reported .

More than 4,100 people were injured in last Sunday 's 7.2-magnitude quake , which struck Turkey 's Van province .

At least 455 people died in the town of Ercis , where rescue efforts have been under way throughout the week , a crisis center in Van province reported Saturday .

However , some 231 people have been found alive in the rubble , despite temperatures nearing the freezing mark at night , Deputy Prime Minister Besir Atalay said Saturday , according to Anatolia . Two teenagers were pulled out of the rubble alive late Thursday and early Friday , more than 100 hours after the quake .

Eighty-four buildings have collapsed in Ercis and six more in the city of Van , Atalay said .

Relief crews have distributed 40,721 tents -- including 6,088 from abroad -- and 159,360 blankets to survivors , authorities said . A total of 1,309 aftershock quakes have occurred since Sunday 's main temblor , officials said .

Turkey 's government plans to present a new law to parliament by the end of December which would see the evacuation of settlements in areas at high risk of natural disaster , Anatolia reported .

Laws governing construction and property management would also be revised under the so-called Urban Transformation Law , the agency said .

The United States and China are the latest countries to offer help to Turkey 's quake survivors .

U.S. Defense Secretary Leon Panetta ordered the U.S. European Command to provide humanitarian relief supplies including blankets , cots , sleeping bags and hygiene kits , the Pentagon said Friday .

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More than 4,100 people were injured in the quake last Sunday

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The town of Ercis was hard-hit

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More than 230 people have been pulled alive from the rubble